Matthew Ladner, via a kind reader’s email:

September 17 is Constitution Day, marking the day 222 years ago in Philadelphia when the Constitution of the United States was signed. Legend has it that a woman asked Benjamin Franklin, as he was leaving the constitutional convention, what sort of government had been created. Franklin’s reply: “A republic, if you can keep it.”
A major justification for supporting a system of public schools has been the promotion of a general diffusion of civic knowledge necessary for a well-informed citizenry. America’s founders, hoping to “secure the Blessings of Liberty to ourselves and our Posterity,” knew that our system of ordered liberty would endure only if its citizens understood the nation’s guiding principles. The endurance of American liberty, the founders believed, depends upon a broad knowledge of the nation’s history and an understanding of its institutions.
Charles N. Quigley, writing for the Progressive Policy Institute, once explained the critical nature of civic knowledge: “From this nation’s earliest days, leaders such as Thomas Jefferson, James Madison, and John Adams recognized that even the well-designed institutions are not sufficient to maintain a free society. Ultimately, a vibrant democracy must rely on the knowledge, skill, and virtues of its citizens and their elected officials. Education that imparts that knowledge and skill and fosters those virtues is essential to the preservation and improvement of American constitutional democracy and civic life.
“The goal of education in civics and government is informed, responsible participation in political life by citizens committed to the fundamental values and principles of American constitutional democracy.”1
For its part, the State of Oklahoma also lays out the goals of social studies education. According to the state’s academic standards: “Oklahoma schools teach social studies in Kindergarten through Grade 12. … However it is presented, social studies as a field of study incorporates many disciplines in an integrated fashion, and is designed to promote civic competence. Civic competence is the knowledge, skills, and attitudes required of students to be able to assume ‘the office of citizen,’ as Thomas Jefferson called it.